NYACK — The first of two floating concrete plants has joined the armada of barges at the site of the new Tappan Zee Bridge.

The plants will provide the majority of the concrete for the new bridge, eliminating the need for hundreds of trucks to deliver it over local roads.

Tappan Zee Constructors, the contractor for the $3.1 billion project, is continuing to use two shifts of workers to drive and/or weld the piles that represent the new bridge's permanent foundation. Work is also continuing on the landings for the new span on both shores and on temporary work platforms.

The view from cameras monitoring the construction can be seen at www.newnybridge.com.